中高压变频器的主要拓扑结构及控制方法  

Main topology structure and control method of middle or high voltage converter

作　　者：卫三民 李发海[2] 吴斌 

机构地区：[1]瑞尔森大学电机系 [2]清华大学电机系,北京100080

出　　处：《电力需求侧管理》2005年第1期15-17,共3页Power Demand Side Management

摘　　要：中高压大功率变频器在国内越来越多的行业获得了日益广泛的应用。但到目前为止,中高压变频器还没有像低压变频器那样具有近乎统一的拓扑结构。在各种拓扑结构的基础上,介绍了比较常用的各种PWM控制方法,并对其进行了详细地分析和比较。几种拓扑结构各有适用场合,目前国内最常用的是串联H桥结构,控制方法以移相PWM为主,但空间矢量PWM也有广泛的应用前景。Middle or high voltage converter is applied in more and more industries. But to now it has not the unique topology structure which is similar with low voltage converter. On the base of all kinds of topology structure, introduce common PWM control method, and make detail analysis and comparison about it. Each topology structure has itself accommodation. At present the common used ones are series H bridge structure. Control method is mainly taken PWM method. But the space vector PWM also has grant application foreground.

关 键 词：中高压变频器 拓扑结构 空间矢量控制方法 

分 类 号：TM921.51[电气工程—电力电子与电力传动]